Oncology Institute Discloses Data Breach
The affected third-party vendor has not been named, but one possible candidate is TriZetto. The post Oncology Institute Discloses Data Breach appeared first on SecurityWeek.

The Oncology Institute says a previously disclosed cybersecurity incident has been confirmed to impact patient information.
The Oncology Institute (TOI) is an oncology provider founded in 2007 that delivers specialized cancer care through a network of over 100 clinics across five states.
Source: https://www.securityweek.com/oncology-institute-discloses-third-party-data-breach/
Related breach coverage
- IMA Diligence Services Data Breach Impacts 525,000 People2026-06-03
The affected individuals’ personal information was stolen from a legacy server managed by a third party. The post IMA Diligence Services Data Breach Impacts 525,000 People appeared first on SecurityWeek.
- Third-Party Cyberattack Impacts Patient Information at The Oncology Institute2026-05-26
The Oncology Institute disclosed a data breach tied to a third-party vendor, potentially exposing patient information after a 2025 cyberattack. The Oncology Institute has confirmed that patient information was impacted in a cybersecurity incident involving a third-party software provider. The healthcare network first disclosed the security breach in November 2025 while the vendor’s investigation was […]
- DocketWise Data Breach Impacts 143,0002026-05-25
Hackers accessed names, addresses, Social Security numbers, financial information, and medical data from third-party partner repositories. The post DocketWise Data Breach Impacts 143,000 appeared first on SecurityWeek.
- Verizon DBIR 2026: Vulnerability Exploitation Overtakes Credential Theft as Top Breach Vector2026-05-20
Verizon’s 2026 DBIR finds vulnerability exploitation has overtaken credential abuse as the leading breach vector, as AI accelerates attacks, patching delays worsen, and ransomware and third-party compromises continue to surge. The post Verizon DBIR 2026: Vulnerability Exploitation Overtakes Credential Theft as Top Breach Vector appeared first on SecurityWeek.
